Home / 128,547.10-192,767.37-48,571.26

Finding the Fourth Proportional to 128,547.10, 192,767.37 and 48,571.26

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Solution

The fourth proportional to 128,547.10, 192,767.37 and 48,571.26 is: 72,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,547.10 : 192,767.37 = 48,571.26 : x
  2. Step 2: Convert to fraction form
    128,547.10/192,767.37 = 48,571.26/x
  3. Step 3: Cross multiply
    128,547.10x = 192,767.37 × 48,571.26
  4. Step 4: Simplify right side
    128,547.10x = 9,362,954,047.79
  5. Step 5: Solve for x
    x = 9,362,954,047.79/128,547.10
  6. Step 6: Final answer
    x = 72,836.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.